Railroad tie



FIG. 1 is a side elevational view of a railroad tie showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an enlarged fragmentary perspective view thereof; and

FIG. 4 is a greatly enlarged sectional view thereof taken along line 4-4 in FIG. 2. 

The ornamental design for a railroad tie, substantially as shown. 